Synthesis, Spectroscopic and Biological Studies of Some New Binuclear Thiocyanate Complexes Containing Bidentate Schiff Base Ligands

Mouayed Yousif Kadhum, Suhad Rajab Kareem, Sanaa Qasem Badr
Abstract: Two new Schiff bases were synthesized from condensation of 4-nitro benzene diamine with aromatic aldehydes (4-nitro benzaldehyde and 4-hydroxy benzaldehyde). These Schiff bases were reacted with binuclear thiocyanete complexes of MM-(SCN)4[M = Co(II) , Ni(II) ; M- = Cd (II)] to produced four new complexes .These compounds were identified by elemental analysis , infrared , Ultraviolet-visible ,1H ,13C-NMR , mass spectra , molar conductance , atomic absorption and magnetic susceptibility .The synthesized Schiff bases were regarded as bidentate ligands and formed complexes of the type LM(NCS)2M-(SCN)2 .These complexes were non electrolytes and had coordination number equal four . Moreover , these Schiff bases and their complexes were screened for antibacterial and antifungal activity against some microorganisms and compared with standard compounds . It was found that the synthesized compounds had a good antibacterial activity.
Keywords: Schiff base , Binuclear complexes , Thiocyanate , Synthesis , Biological, Research Paper, Chemistry, Iraq
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